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Linux distros build on Conary package system

"Foresight stands out not only for its tight linkage to GNOME,
but for its use of the Conary package/system management tookit,
instead of the more common RPM or Debian package management
systems. Conary is also used by the recently updated enterprise
appliance builder rPath X6 (see farther below).

"Among other benefits, Conary makes it a lot easier to do
rolling releases, says the Foresight project. Conary also 'ensures
that users can efficiently search, install, and manage all the
software on the Foresight system,' says the project."